Collectors regard 130 euros for a pure piston repair on a black Meisterstück 146 as clearly excessive, since Montblanc has been working with flat-rate repair fees for years and even the complete replacement of a black Meisterstück without nib lies below this sum. Forum reports cite figures of around 42 euros for a general overhaul including renewal of piston thread, seals and feed and shipping. The recommendation is first to fix the stiffness by repeatedly flushing with clear water and then to call Montblanc customer service directly to clarify the flat fee, bypassing any dealer surcharges. The piston mechanism of the Meisterstücks has been almost unchanged since the 1960s and is very robust under normal care, which is why a real defect is unusual.
Related pages on fountainpen.de:
• Montblanc Meisterstück 146 (Le Grand): https://www.fountainpen.de/c-montblanc-meisterstueck-146-en.htm